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| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2016-08-10 02:39:30 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-08-19 05:40:27 +0300 |
| commit | 44ef38f9a2af8644c24ace6cbe1132dc70174c39 (patch) | |
| tree | 74c34834186fe032ad96911d12b25a60de4d88ed | |
| parent | 41b99e1a30a6d04df7585905e5ffc7251099c6d3 (diff) | |
| download | linux-44ef38f9a2af8644c24ace6cbe1132dc70174c39.tar.xz | |
scsi: cxlflash: Cache owning adapter within context
The context removal routine requires access to the owning adapter
structure to reset the context within the AFU as part of the tear down
sequence. In order to support kref adoption, the owning adapter must be
accessible from the release handler. As the kref framework only provides
the kref reference as the sole parameter, another means is needed to
derive the owning adapter.
As a remedy, the owning adapter reference is saved off within the
context during initialization.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/cxlflash/superpipe.c | 1 | ||||
| -rw-r--r-- | drivers/scsi/cxlflash/superpipe.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c index ab5c8939928b..640c3a2641ef 100644 --- a/drivers/scsi/cxlflash/superpipe.c +++ b/drivers/scsi/cxlflash/superpipe.c @@ -804,6 +804,7 @@ static void init_context(struct ctx_info *ctxi, struct cxlflash_cfg *cfg, ctxi->lfd = adap_fd; ctxi->pid = current->tgid; /* tgid = pid */ ctxi->ctx = ctx; + ctxi->cfg = cfg; ctxi->file = file; ctxi->initialized = true; mutex_init(&ctxi->mutex); diff --git a/drivers/scsi/cxlflash/superpipe.h b/drivers/scsi/cxlflash/superpipe.h index 5f9a091fda95..61404f201deb 100644 --- a/drivers/scsi/cxlflash/superpipe.h +++ b/drivers/scsi/cxlflash/superpipe.h @@ -107,6 +107,7 @@ struct ctx_info { bool err_recovery_active; struct mutex mutex; /* Context protection */ struct cxl_context *ctx; + struct cxlflash_cfg *cfg; struct list_head luns; /* LUNs attached to this context */ const struct vm_operations_struct *cxl_mmap_vmops; struct file *file; |